Power Line Common Mode Choke

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Integrated Common Mode Choke - LEF17T Series | 90W Power Supply Filter

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Payment Type: L/C,T/T
Min. Order: 1
Transportation: Ocean,Land,Air,Express
Port: Xi'an,Shanghai

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Description

Product Attributes

Model No.: LEF

Brand: FERRTX

Types Of: Emi Filter

Filter Type: Power Line

Installation Method: Through Hole

Voltage-Rated DC: Not Applicable

Inductance: 3.3mH, 6.8mH, 15mH, 25mH, 30mH

Inductance Tolerance: +50% / -30%

Rated Current (DC): 0.3A to 0.8A

DCR Max: 0.36Ω to 1.48Ω

Test Frequency: 10kHz

Operating Temperature: -50°C to +110°C

Insulation Resistance: 100 MΩ Min. at 500V DC

Applications: Power Supplies (20-90W), LED Drivers, Electronic Ballasts

Mounting Type: Through-Hole (THT)

Termination: Wire Lead

Packaging & Delivery

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Supply Ability & Additional Information

Transportation: Ocean,Land,Air,Express

Place of Origin: China

Supply Ability: 2~8weeks

Certificate: RoHS/ISO/UL/CE/IATF 16949/CNAS

Port: Xi'an,Shanghai

Payment Type: L/C,T/T

Product Description

Integrated Common Mode & Differential Mode Choke - LEF17T Series

Conducting EMI getting in the way of your productx27s certification and market success? In the critical realm of power supply design, effective noise suppression is non-negotiable. The LEF17T series represents a leap in EMI Filter technology, integrating both common mode and differential mode filtering into a single, highly reliable Power Inductor component.

Key Features

Space-saving, simplified electromagnetic interference filtering integrates common-mode and differential-mode noise suppression into a single compact component.
The LEF17T features enhanced isolation performance (withstands 1000V AC between windings for 1 minute) and insulation resistance ≥100MΩ at 500V DC.
The closed-loop core design effectively confines magnetic flux, improving efficiency and reducing interference to adjacent circuits.
It operates stably at temperatures up to 110°C, maintaining long-term performance even in confined spaces with restricted airflow.

Applications

Switch-Mode Power Supplies (SMPS): Ideal for 20W to 90W power adapters, chargers.
LED Lighting Drivers: Ensure stable, flicker-free operation and achieve EMC compliance for both indoor and outdoor LED lighting solutions.
Electronic Ballasts: Provide reliable EMI filtering for lighting systems.
Industrial Control Systems: Improve the anti-interference ability of the control board and power module.

Technical Specifications at a Glance

Part Number	Inductance L0 (mH) +50%/-30% @0Adc	Heat Rating Current DC (A)	DCR Max. (Ω)
LEF17T-332Y	3.3	0.8	0.36
LEF17T-682Y	6.8	0.6	0.54
LEF17T-153Y	15	0.5	0.96
LEF17T-253Y	25	0.4	1.15
LEF17T-303Y	30	0.3	1.48

(This table provides a quick comparison. Detailed specs for each part number are available on their respective product pages.)

Technical Information:

Test Frequency: 10kHz, 50mV
Operating Temperature: -50°C to +110°C
Rated Current: The current when the temperature rise of the coil reaches a maximum of ΔT=40°C (Ta=25°C).

Conclusion and Call to Action

Selecting the optimal EMI Filter is a critical decision that impacts the compliance, reliability, and time-to-market of your electronic designs. With its integrated design, robust safety features, and application-focused performance, the LEF17T series is your ideal partner to navigate these choices.

Ready to suppress noise and streamline your power supply design?

Browse our full range of EMI Filters to find the standard part that meets your needs.
Download the detailed LEF17T datasheet for comprehensive technical information.
Canx27t find the perfect match? Please contact our technical team for consultation. We specialize in providing customized solutions to meet specific needs.